Local Anesthetic Techniques

Technique	Features
1. Infiltration	Also called as submucosal analgesia. Terminal branches or free nerve endings are anesthetized. Only that area into which the local anesthetic solution is infiltrated is anesthetized.
2. Field Block	Large Terminal Branches are anesthetized.
a) Paraperiosteal	Most commonly used technique. The solution is deposited alongside the periosteum. It is indicated widely in the porous maxilla than in the dense mandible.
b) Interosseous	Means injecting directly into the bone. Painful and dangerous procedure. It is not commonly used.
c) Interseptal	It is most effective in children and young adults. LA is injected into the thin porous interseptal bone.
d) Intraligamentary	Most effective for anesthetizing single tooth by injecting LA into the periodontal ligament under high pressure.
e) Intrapulpal	LA is injected into the pulp chamber. The needle should be wedged firmly.